Fill in the following four sentences with “ habit, practice; custom ”.

1.The incident between the two nations has been settled according to the international ______________.

2. He has a ___________ of biting his lips when he is puzzled.

3. Eating hot dogs is an American ____________.

4. It is a regular __________ for a shop to open at 8:00 in the morning in this area.

He has a _______ of knowledge about China .

A. plenty　　　　　 B. deal　　　　 C. wealth　　　　 D. much

He has a ________ of putting the tip of his tongue out the corner of his mouth.

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He has a ________ of putting the tip of his tongue out the corner of his mouth.

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He has a ________(of writing) like that of Dickens.

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